Re: Bicycle motor coloring?
I used to be of the school of bare metal discipated heat better than painted metal. I was around some engineers who worked with refrigeration equippment
and got into a discussion with them about this very thing.
They were explaining the merits of painted metal giving up heat much better than bare metal. I've noticed since my 500cc motorcycle has a painted black
cylinder and the motor painted with clear coat.
The engineers were explaining the reasons they paint much of the air conditioning equippment they built in their factory as with the refrigerators etc.
Anodizing which is basically dying aluminum isn't difficult. I first learned how to do it with a book titled, "Formulas Methods Tips & Data". I want to look into Jasonh's link and see what it says about anodizing.